package com.jonsnowsword.wifiassistant;

import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;


public class DesEncryption
{
	private static byte[] iv = { 1, 2, 3, 4, 5, 6, 7, 8 };

	

	  public static String encryptDES(String encryptString, String encryptKey)

	       throws Exception {

	     IvParameterSpec zeroIv = new IvParameterSpec(iv);

	     SecretKeySpec key = new SecretKeySpec(encryptKey.getBytes(), "DES");

	     Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");

	    cipher.init(Cipher.ENCRYPT_MODE, key, zeroIv);

	     byte[] encryptedData = cipher.doFinal(encryptString.getBytes());

	    return Base64.encode(encryptedData);

	    
	}
	  
	  public static String decryptDES(String decryptString, String decryptKey)

	          throws Exception {

	      byte[] byteMi = Base64.decode(decryptString);

	      IvParameterSpec zeroIv = new IvParameterSpec(iv);

	     SecretKeySpec key = new SecretKeySpec(decryptKey.getBytes(), "DES");

	   Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");

	    cipher.init(Cipher.DECRYPT_MODE, key, zeroIv);

	     byte decryptedData[] = cipher.doFinal(byteMi);

	 

	     return new String(decryptedData);

	}
	
	
}